Experiment Station Record, Volume 43, July-December, 1920 Page: 26
xxiv, 1005 p. ; ill. ; 24 cm.View a full description of this book.
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26 EXPERIMENT STATION RECORD. [Vol. 43
sponding values for calcium sulphate are 0.24 and 0.1 mole, respectively, per
1,000 moles 1H20."
Potash in 1918, W. B. HICKS (U. S. Geol. Survey, Min. Resources U. S.,
1918, pt. 2, pp. IV-385-445).-This bulletin deals with the production and use
of potash and potash-bearing materials in the United States and foreign
countries during 1918, and gives a general discussion of the industry in different
parts of the world.
The production of potash-bearing materials in the United States in 1918
amounted to 207,686 short tons, equivalent to a total content of 54,803 short
tons of potash. This production was nearly 70 per cent greater than in 1917
and represented about 22 per cent of the normal consumption in the country.
In 1918 the production came from 10 distinct classes of raw materials.
Natural brines furnished about 73 per cent of the output, the Nebraska lakes
alone contributing about 53 per cent and Searles Lake, Cal., the second largest
quantity from a single source. Kelp yielded about 9 per cent of the total production,
followed by smaller contributions from molasses, alunite, cement, etc.
Potash materials marketed in 1918 varied greatly in composition and in content
of potash. Crude mixed salts, containing from 20 to 28 per cent of potash
and composed largely of carbonates and sulphates of sodium and potassium,
constituted about 58 per cent of the output; muriate, containing 60 to 96 per
cent of potassium chlorid, equivalent to 38 to 62 per cent of potash, about 24
per cent; sulphate, containing 35 to 51 per cent of potash, 6 per cent; and lowgrade
chlorid, crude carbonate, caustic, potash char and ash, cement and blastfurnace
dust, and miscellaneous, the remainder. Most of the muriate was of
low grade and much of it contained borax, while the larger portion of the
sulphate was of high grade. Crude carbonate and caustic was largely the
product made from wood ashes. As marketed, much of the carbonate contained
about 70 per cent of potassium carbonate mixed with about 30 per cent of
potassium sulphate and other impurities.
Approximately 53 per cent of the total production came from Nebraska, 34
per cent from California, 7 per cent from Utah, and the other 6 per cent from
18 other States and Porto Rico. The domestic production of refined potassium
salts in 1918, exclusive of chlorids and sulphates, amounted to 53,661,676 lbs.
and the sales amounted to 43,833,503 lbs.
Potassium salts (U. S. House Represent., 66 Cong., 1 Sess., Corn. Ways and
Means Hearings on Potassium Salts, 1919, pp. 214).-The details of the hearings
before the Committee on Ways and Means of the House of Representatives,
U. S. Congress, on a bill for the control of importation of potassium salts, are
given.
Potash fertilizers (Bd. Agr. and Fisheries [London], Leaflet 335 (1920),
pp. 3).-Brief popular information on the price, fertilizing value, and practical
use of potash fertilizers in England is contained in this leaflet.
Phosphoric acid: Facts about the most important of mineral soil constituents,
J. A. BROCK (Facts About Sugar, 10 (1920), Nos. 3, p. 50; 4, pp. 70,
71).-Brief information is given on the chemical composition of the common
phosphatic fertilizers, factors in their availability, and their action in soil and
toward plants.
I, The relative availability of acid phosphate and the native soil phosphates
in the presence of pulverized limestone. II, Future of the agricultural
lime industry, J. L. BURGESS (N. C. Dept. Agr. Bul. 41 (1920), No. 3,
pp. 24).-In Part I of this bulletin a review and summary of a number of
works by others on the availability of acid and native phosphate in the presence
of lime are given, from which the conclusion is drawn that while acid phosphate
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A topical, alphabetically arranged index to volumes 41-50 including experiment station records, publications reviewed, and foreign publications. In has a list of all editorial notes from the referenced volumes.
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United States. Office of Experiment Stations. Experiment Station Record, Volume 43, July-December, 1920, book, 1921; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc5011/m1/50/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.